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3 years ago

I need help with this math problem please

Mathematics

2 answers:

Gekata [30.6K]3 years ago

8 0

Answer:

C) 3(x+7)²

Step-by-step explanation:

MAVERICK [17]3 years ago

5 0

Answer:

A) (3x + 21)(x + 7)

Step-by-step explanation:

If we look at the equation we can see that it is a quadratic equation, therefore we can factor it in the following way...

$3x^{2} + 42x + 147 = 3x^{2} + 21x + 21x + 147 = 3x(x + 7) + 21(x + 7) = (3x + 21)(x + 7)$

Therefore the answer is A)

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xenn [34]

Answer:

1) -3/3

2) 1/2

3) 3/4

4) -2/1

5) 1/2

6) 4/1

Step-by-step explanation:

RISE OVER RUN

(Rise) Using the farthest dot on the left you count how much you rise till you align with the second dot (depending on whether you go up or down determines + or -)

(Run) Once aligned with the second dot count whilst 'running' towards it till you've reached it. (If you go right it's +, if you go left it's -)

Hard to explain, but it's really easy if you look up a tutorial.

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3 years ago

These are numbers with more than two factors. *

maxonik [38]

Answer: A

Step-by-step explanation:

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3 years ago

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A company packages its milk powder in cylindrical container whose base has a diameter of 28 cm and

yKpoI14uk [10]

Answer:

896pi or 2814.9cm^2

Step-by-step explanation:

S=h*r*2pi=(40-2*4)*28/2*2pi=32*14*2pi=896pi=2814.9cm^2

6 0

2 years ago

What is the answer to number 1 question?

never [62]

I do not know the answer

8 0

3 years ago

Adult male heights have a normal probability distribution with a mean of 70 inches and a standard deviation of 4 inches. What is

raketka [301]

Answer: 0.5

Step-by-step explanation:

Given : Adult male heights have a normal probability distribution .

Population mean : $\mu = 70 \text{ inches}$

Standard deviation: $\sigma= 4\text{ inches}$

Let x be the random variable that represent the heights of adult male.

z-score : $z=\dfrac{x-\mu}{\sigma}$

For x=70, we have

$z=\dfrac{70-70}{4}=0$

Now, by using the standard normal distribution table, we have

The probability that a randomly selected male is more than 70 inches tall :-

$P(x\geq70)=P(z\geq0)=1-P(z$

Hence, the probability that a randomly selected male is more than 70 inches tall = 0.5

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3 years ago

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